the action of prohibiting or inhibiting or forbidding (or an instance thereof); "they were restrained by a prohibition in their charter"; "a medical inhibition of alcoholic beverages"; "he ignored his parents' forbiddance"

a law forbidding the sale of alcoholic beverages; "in 1920 the 18th amendment to the Constitution established prohibition in the US"

a decree that prohibits something

refusal to approve or assent to

the period from 1920 to 1933 when the sale of alcoholic beverages was prohibited in the United States by a constitutional amendment